Synthesizing images conditioned on descriptive sentences is a popular research topic in the cross-field of vision and language processing. Due to its various potential applications such as photo-editing, computer-aided design and virtual scene generation, many methods have been proposed to address this problem such as Generative Adversarial Networks (GANs) [1]}, [2]}, [3]} and variational auto-encoders [4]}, [5]}. Recently, GAN-based methods achieve promising results on this task [6]}, [7]}, [8]}, [9]}, [10]}.
